[amsat-bb] Re: PSK v. APRS

[Tony Langdon]

At 11:42 AM 6/7/2011, Justin Pinnix wrote:
>Greg, you're overlooking something - the time dimension.
>
>Yes, packet is a one-at-a-time affair, but those packets move quickly -
>1200bps vs 31bps for PSK31.  So, each station only has the bird tied up for
>a short period of time.  You could think of it as a form of time division
>multiplexing.

Of course, if everyone is using computer frequency control, then 
dozens, if not hundreds of simultaneous QSOs can take place.  In 
other words, frequency division multiplexing.

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